Repository (version control)

A Repository^[1] is a concept from distributed revision control that refers to a data structure, usually stored on a server, that contains, among other things:

A set of files and directories.
Historical record of changes in the repository.
A set of commit objects.
A set of references to commit objects, called heads.

Notes

^ Duan, Charles, Understanding Git Conceptually, 2010, accessed 3 septembre 2011.

Revision control software

Years, where available, indicate the date of first stable release. Systems with names in italics are no longer maintained or have planned end-of-life dates.

Local only

Free/open-source	SCCS (1972) RCS (1982)

Proprietary	PVCS (1985)

Client-server

Free/open-source	CVS (1990) CVSNT (1998) Subversion (2004)

Proprietary	Software Change Manager (1970s) ClearCase (1992) CMVC (1994) Visual SourceSafe (1994) Perforce (1995) StarTeam (1995) MKS Integrity (2001) AccuRev SCM (2002) SourceAnywhere (2003) SourceGear Vault (2003) Team Foundation Server (2005) Rational Team Concert (2008)

Distributed

Free/open-source	GNU arch (2001) Darcs (2002) DCVS (2002) SVK (2003) Monotone (2003) Codeville (2005) Git (2005) Mercurial (2005) Bazaar (2005) Fossil (2007) Veracity (2011)

Proprietary	TeamWare (1990s?) Code Co-op (1997) BitKeeper (1998) Plastic SCM (2006)

Concepts

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